2nd AC and Vent cover questions

I've changed an A/c Out before, due to failure. If you have a basic understanding of electrical work it's not very hard.

As mentioned, the hardest part is getting the roof unit up on top. My approach may seem strange but it worked. Set unit on end at base of aluminum ladder and used a rope to pull it up onto the slide room. Son helped move it from there. Helps to have someone on roof and inside when lining up the bolts.

I'm not confirmed what they're really called, but the louvered vent covers things... anybody know if they make some that when you close the vent, it in fact closes the vent, instead of creating a huge hissing wind tunnel?

Thanks all! Great info. I'll watch some of the videos to see if I want to tackle this and I'll get a quote from the shop to see what that looks like as well.

To answer a few points above, yes the wiring is there. There is a plate in the ceiling right next to the vent that has a sticker saying AC wiring located here etc etc.

One final question- Noise... Is there a particular brand or model known to be much quieter than others? Our main unit is Dometic and the noise level is fine. It is better than our last camper but also 15 years newer. That said, being right over the bed I would prefer something even a bit quieter if such a thing exists. Let me know if you have found a super quiet Non-Ducted AC unit, and do the "low profile" versions work quieter?? Thanks!

Aside from the cost, there is hardly any negative to having a reputable technician perform the installation.

Some rigs are set up for the 2nd A/C to be ducted into the same duct work as the primary A/C and have a dual zone thermostat to control both. Some are not.

vents like this?? https://www.etrailer.com/p-372GRILL2D-A.html?feed=npn&gclid=Cj0KCQjwvo_qBRDQARIsAE-bsH_f4mh0iBF88KwEmNZZUUTSFvSf0qt9jVVuEpbW3ZfOLu3fq970GMcaAhghEALw_wcB

For the vents, Amazon has them but you need to measure your current ones:
- with a 1.5" collar: White Adjustable Ceiling Vent with 1.50" Collar
- with a 0.25" collar: White Adjustable Ceiling Vent with 0.25" Collar

As long as all of the wiring is in place, I've heard from quite a few people that self-installing an A/C isn't very hard. Worst part is getting it onto the roof.

No idea on where to buy. If local parts + service center was close to cheapest, I would buy from them for a little local tech support if the situation arises.

The AC you have now is a ducted AC. The 2nd one you want will be a non ducted. https://www.rvpartscountry.com/Dometic13500DuoThermBrisk2TopUnitOnlyAirConditioner.html?gclid=Cj0KCQjwvo_qBRDQARIsAE-bsH_y6y8TO27fRqzIbbX67wOiIEg6pu0zWMxjeR7wj9RmNfMRfSoy-DwaAvexEALw_wcB . It would be installed in place of the roof vent in the bedroom.When you decide on AC you want don't forget to get the inside air box too it's extra. https://www.rvpartscountry.com/Dometic13500DuoThermBrisk2TopUnitOnlyAirConditioner.html?gclid=Cj0KCQjwvo_qBRDQARIsAE-bsH_y6y8TO27fRqzIbbX67wOiIEg6pu0zWMxjeR7wj9RmNfMRfSoy-DwaAvexEALw_wcB The installation requires going on roof with new AC. This is best done with 2 or more people. The 120v wiring should be in the ceiling at the vent. That's what they mean by prewired. The are numerous you-tube videos on installing a 2nd AC. I'd watch several and then decide if it's something you could do. https://www.youtube.com/watch?v=4O6CCIcehbQ